The below video is of my 91 318is m42. it's got a rumbly idle (kind of like it's got giant cams), and searches between 500 and 800 rpm at idle - sometimes drops a bit more. Never dies though. Runs and drives with no issues otherwise.
I've also noticed quite a lot of air coming out of the oil filler cap and a change in the idle before and after removing it. Does the m42 have really high crank case pressure, or do I have some blow by? You can see the air coming out of the hole as well as oil splatter. If it is just high pressure, does the change in idle indicate another problem?
Any ideas on what my problem(s) could be?
Took this video tonight.
https://www.youtube.com/watch?v=OUPWxJy7KPY&feature=youtu.be
*146,100 miles on the stock motor.
* I've done the mess under the intake recently and have eliminated any vacuum leaks. Double checked via carb cleaner method and wasn't able to affect the idle.
*Stock injectors should be very clean - run a bottle and a half of sea foam and some lucas injector cleaner.
*Cleaned AFM, Throttle body, and ICV.
* Installed spare AFM with same results
*Unplugged O2 sensor same results. Installed new sensor with same results (however the new sensor's wiring was about 4 inches short and was clearly the wrong part. It has since been uninstalled)
*the random plug that makes the car run bad is unplugged
* Oil and filter are fresh 1k miles ago.
* Spark Plugs fresh 1k miles ago.
Show post that are related to the Thank-O-Matic. It will show the messages where you become a Thank You from an other users.
Messages - dasfrogger
Pages: [1]
I recently got a new job (the reason for the e30 purchase) and am now having to commute downtown and park in a parking garage. Today was my first day and I didn't enjoy it one bit. My problems are:
1) lumpy idle (not the end of the world, but it really bothers me)
2) sometimes its very difficult to select a gear, especially 1st and 2nd, especially after it's been sitting for awhile.
3) the clutch goes all the way to the metal and the only way I can get it there is by using the big toe part of my foot. My toe didn't feel great after the weekend and driving in dress shoes was the least fun today. I don't really care if that sounds like a wuss problem. It's not comfortable to operate the car and something's gotta change.
I'm hoping that bleeding the brakes and clutch slave will solve my gear selection issue and that it's not my slave cyl on it's way out. I'll plan to bleed this weekend and update.
To solve my clutch/uncomfortable foot issue I figured I'd try a DIY clutch stop mod. Did about 20 minutes worth of research and I was off to Lowes. $4.85 later and I was back home ready to start.
So here's the exploded parts. Part numbers from Left to right below the picture - everything purchased from LOWES.
+ SoftTouch Felt Pads #0053801. 1.5" round, light tan felt, adhesive back
+ Elevator Bolt 3/8-16 x 1-1/2
+ Nut, 3/8"-16 #67341
+ Lock Washer 3/8" #61816
Got out to my car and found that the carpet one of the PO's had glued in over the stock carpet obscured the view of the clutch stop.
Peeled back the nasty overlay carpet to find even nastier original carpet...and the location of the clutch stop.
I cut a hole in the overlay carpet to expose the stock clutch stop
Removed the stock clutch stop with a Phillips head screw driver. gave no resistance and came out in a few seconds
A comparison shot
I threaded the nut all the way up the Elevator bolt and then slipped the lock washer on after it. Twisted the elevator bolt in by hand till it couldn't turn any more then turned the nut down by hand till it was finger tight.
Picked myself up off the ground and started the car right up no problem. Did a quick test drive around the block and no problems using clutch. Too much traffic around my house to enjoy a testdrive so I'll go for one tonight.
Preliminarily it feels really really good. Way easier to shift and foot position is better too. I could probably back the bolt out a little more to minimize clutch travel, but for a driver this is really nice. Very happy with this mod, it yielded great results (so far), and was truly plug and play. Best $4.85 I've spent in a long time.
1) lumpy idle (not the end of the world, but it really bothers me)
2) sometimes its very difficult to select a gear, especially 1st and 2nd, especially after it's been sitting for awhile.
3) the clutch goes all the way to the metal and the only way I can get it there is by using the big toe part of my foot. My toe didn't feel great after the weekend and driving in dress shoes was the least fun today. I don't really care if that sounds like a wuss problem. It's not comfortable to operate the car and something's gotta change.
I'm hoping that bleeding the brakes and clutch slave will solve my gear selection issue and that it's not my slave cyl on it's way out. I'll plan to bleed this weekend and update.
To solve my clutch/uncomfortable foot issue I figured I'd try a DIY clutch stop mod. Did about 20 minutes worth of research and I was off to Lowes. $4.85 later and I was back home ready to start.
So here's the exploded parts. Part numbers from Left to right below the picture - everything purchased from LOWES.
+ SoftTouch Felt Pads #0053801. 1.5" round, light tan felt, adhesive back
+ Elevator Bolt 3/8-16 x 1-1/2
+ Nut, 3/8"-16 #67341
+ Lock Washer 3/8" #61816
Got out to my car and found that the carpet one of the PO's had glued in over the stock carpet obscured the view of the clutch stop.
Peeled back the nasty overlay carpet to find even nastier original carpet...and the location of the clutch stop.
I cut a hole in the overlay carpet to expose the stock clutch stop
Removed the stock clutch stop with a Phillips head screw driver. gave no resistance and came out in a few seconds
A comparison shot
I threaded the nut all the way up the Elevator bolt and then slipped the lock washer on after it. Twisted the elevator bolt in by hand till it couldn't turn any more then turned the nut down by hand till it was finger tight.
Picked myself up off the ground and started the car right up no problem. Did a quick test drive around the block and no problems using clutch. Too much traffic around my house to enjoy a testdrive so I'll go for one tonight.
Preliminarily it feels really really good. Way easier to shift and foot position is better too. I could probably back the bolt out a little more to minimize clutch travel, but for a driver this is really nice. Very happy with this mod, it yielded great results (so far), and was truly plug and play. Best $4.85 I've spent in a long time.
| Pages: [1] |